Flow controlled device



April 13, 1937. w.v B. SMITH v 2,075,600

v FLQw CONTROL-LED DEVICE Filed May 27, 1936 :s sheets-Sheet 1 42 2 Zockg. 5. W4.

I @o I s A n "T i I u f f w. B. SMITH 2,076,600

FLow coNTRoLLED DEVICE Filed May 27, 1936 April 13, 1937.

3 Sheets-Sheet' 2 April 13, 1937. w. B. SMITH 2,076,600

FLOW CONTROLLED DEVICE Filed May 27, 193e s sheets-sheet s Patented Apr. 13, 1937 UNITED STATES PATENT OFFICE 20 Claims.

'I'he present invention relates to devices wherein flow movement is utilized, for example; to effect flow escape or air intake. Such devices find typical use as means for priming drain traps or for venting pipe lines and the like, and 'in the following description the invention will be described in such embodiments.-

The invention has as its main object to provide devices made up of few parts, readily manufactured, -and easily assembled to produce simple but highly efficient articles. A further important object is to provide such devices as will be eiective regardless of the direction of ow therethrough so that incorrect installation is rendered impossible.

In the accompanying drawings, with reference to which the principles of the invention will be explained:

Figure 1 is a sectional view of a priming device in accordance with the invention,

Figure 2 is a section substantially on line 2-2 of Figure 1,

Figure 3 is a section substantially on line 3-3 of Figure 1, I

Figure 4 is a view similar to that of Figure 1, but with the parts in diierent relation,

Figure 5 is a view, in perspection, showing in part and in disassociated relation certain parts appearing in the preceding figures,

Figure 6 isa sectional view of parts modied to provide a venting device or syphon breaker,

Figure 7 is a sectional View of a modified form of priming device,

Figure 8 is a section substantially on line 8-8 35 of Figure 7,

Figure 9 is a view similar to that of Figure 7 but with the parts in different relation,

Figure 10 is a section substantially on line Ill-I0 of Figure 7,

Figure 11 is a sectional View of a further modied form of priming device,

Figure 12 is a section substantially on line I2-I2 of Figure 11,

Y Figure 13 is a view similar-to that of Figure 11,

45 but with the parts in diierent relation, and

Figure 14 is a section substantially on line I4I4 of Figure 11.

Referring to the drawings and first to Figs. to f 5, reference numeral I0 designates generally a 50 housing whose main portion is of generally cylindrical form, having the cylindrical side Walls II and the end closure Wall I2, desirably formed as an integral casting. Ports I3 and I4 are formed in diametrically opposite portions of the side 55 walls and exterorly of the casing are rimmed by the internally threaded flanges I5 and I6. The open end of the housing is externally threaded, the edge being provided with an internal annular recess I'I in which is disposed a packing ring I8.

A circular cover I9 is of a size to be received` within recess I'l and to seat against gasket I8. At diametrically opposite points the cover carries a pair of pedestals 20 and 2l, these being spaced apart so asl to be receivable Within the housing in the manner shown. The upper ends of the pedestals 20 and 2| are provided with angular notches 22 and 23 in which are received the knife edge bearings 24 and 25 of trunnions 26 and 21 from which depends a ilap or vane 2li. The vane 28 is provided with a longitudinally extending slot 29, the upper edge of the vane, above the slot, having a transversely extending groove 30 formed therein. The bottom edges 3| and 32 of the groove are eccentric to the knife edges 24 and 25 and are equally spaced from the plane of the latter.

Cover I9 has a central outwardly extending boss 33, the boss being provided with an axial bore threaded at its outer portion and enlarged as at 34, at its inner end, to provide an abutment shoulder. A plug is threaded in the inner end of the bore and has a flange which abuts the shoulder. Plug 35 has an axial bore rimmed at the inner end of the plug by a neck 36, the latter being embraced by a compressible Washer 31 which rests against the inner end of the plug.

A pin or stem 38 extends through the passage of the plug in spaced relation to the passage walls, the stem having a hook shaped upper end comprising a cross portion 39 substantially perpendicular to the main portion of the stem and lying in lgroove 30 of flap 28. 'I'he outerv portion of the stem is threaded and has screwed thereon a cup .shaped valve member l40 whose edges are adapted to co-operate with washer 3l as a seat. A compression spring 4I surrounds .the outer end of stem 38, its ends abutting the outer end of plug 35: and an abutment nut 42 threaded on the extremity of the stem. The spring holds the valve member normally seated. It is precautionary and may be omitted when the primer is so positioned that the vane is pendulous. Cover I 9 is held in place by means of a ring nut- With the body I0, a gasket being interposed between the nut and the cover, if desired. The A plane of pedestals 20 and 2l is intended to be at right angles to the axis of .ports I3 and I4 and to insure their proper position a key 46 may be 43 having a flange 44 in threaded engagement d set in registering grooves in the body edge and cover I9, Fig. 1.` The body Il) is intended to be interposed in a fluid supply line such as a water line leading to 5 a fixture which may be a faucet in regular use. Either of ports I3 or I4 may be the inlet port and the other the outlet port. '.Ihe normal position Vof the vane is that shown in Fig. 1, wherein the vane lies in the plane of the plug aperture with the pin 38 received in slot 29. Upon ow through the casing in either direction the lvane will be deected so that one or the other of edges 3|, 32 will act on cross portion or follower 39 to cam stem 38 upwardly, thus lifting valve member 40 from its seat and permitting escape through the plug aperture. Neck 33 has threaded therein a pipe which leads to a fitting such as a drain trap which it is desired to maintain full or flushed.

In initial installation cross portion 39 lies somewhat above the bottom of groove 30 as indi? cated inFig. 1 so as to permit valve 48 to seat securely. The proper amount of escape through plug 35 may, of course, be obtained by providing a plug opening of the required size.

In Fig'. 4, it is assumed that ilow is taking vplace through port I3 to port I4. Swinging movement of the lvane is limited, as indicated, by the abutment of the lower corners of the latter with the cylindrical walls II. Full ow to outlet I4 is insured since fluid may pass above, below, and around the sides of the vane and also through slot' 29. Due to these flow clearances, v the vane will not be moved unless substantial 30 ilow occurs. Consequently in the case of a leaky faucet, for example, the vane will not be affected and valve 40 will remain in closed position unless the faucet is opened.

The priming device as described may have 40 associated therewith, if desired, a venting device such as disclosed in my co-pending application Serial Number '129,125 led June 5, 1934.

If the device is intended to be used for venting purposes the valve should be normally open. 15 The necessary rearrangement is readily made and is shown in Fig.5. In this figure the cover designated at I9 is associable with the housing heretofore described. 'I'he plug 35' vhas a relatively large opening and has aillxed to'its outer 00 end a compressible annular gasket 31' outwardly of which is a slot formed in extension 33'. The stem 38' has threaded thereon a valve meniber 48' co-operable with the seat constituted by gasket 31', stem 38 and valve member'48 being normally held in the position illustrated by means of a tension spring 4|' secured at one end to the outer end of stem 38' and at the other end to a plug 5| threaded in a cap 52 which is screwedl on the extremity of extension 33'.

Stem 38' has a follower portion co-operating with a movable vane as hereinbefore described and upon flow` the stem is moved to seat valve member 48' so'that flow from the inlet to the outlet of the'housingmay occur without fluid 60, escape through slot 55. In the absenceof ilow through the housing, valve member 48' occupies the unseated position illustratedso that slot 58 is in free communcation with the interior of the In the embodiment of Figures 'l to 10 the side walls 55 and 55 of the body 51 are parallel, their top portions having arcuate enlargements 58 and 59 so that the body has a circular top which has threaded thereon a cover 55. The depending l 58 pivotally received in recesses 54 and 55 which are upwardly closed by the cover 50. The vane has a central top recess with cam edges 59 and 18 and may have a central bottom recess 1|. The plug 12 h s a top annular rib co-operating with a gasket 13 carried by a cup-shaped valve member14 threaded on a stem 15, the gasket being normally held seated by a compression spring 15. The spring may be omitted. Sternl 15 has a wide hook-shaped upper pontion so that the shallow slot 1| suillces to provide swinging clearance and the long slot of the first embodiment is avoided.

The mode of operation is the same .as in theA first embodiment although the device ismore sensitive in view of the relation of the ow passage to the vane and in view of the reduced clearances at the sides of the vanes and the absence of the long vane slot. The sensitiveness may of course be controlled by varying the clearances. Ordinarily it is desirable that slight flow be possible without causing valve member 14 to lift. Theoperative swing of thevane may be in either direction. l

In the embodiment of' Figures 11 to 14 the body 11 has parallel side walls 18 and 19 which are enlarged to provide a circular top flange 88 which is internally threaded and receives a closure plug ,or top 8|. 'I'he flow ports 82 and 83 are :lust below the closure 8| and the body has van integral depending neck 84.

Shoulders and 85 at the bottom of the body cavity have recesses 81 and 88am a plane perpendicular to the axisof the ow ports and in the axis of neck 84. These recesses pivotally receive the lower edge of a vane 89 which centrally has flanges 98 and 9| perpendicular to its plane.

A stem 92 has xed to its upper end a U- shaped member 93 whose inturned ends 94' and 95 overlie the flanges 98 and 9|. A valve member 95 iixed toy the stem 92 co-operates with a plug 91, being normally seated by a compression spring 88 which may be omitted. Upon flow` vention. I do not limit myself in these respects except as in the following claims.

I claim: V

l. A device of the class described comprising a body having a through flowpassage, a pivotally mounted vane normally extending transversely of the line of flow through said passage,

said vane being swingable under the force of iluid traversing laid passage. there being anion-inne communicating with said passage, a movable valve element controlling said orifice, cam means rocked as a result of swinging of said vane, and followerA means engaging said cam means and connected to said valve element for controlling the latter in dependence upon the position of said vane.

2. A device of the class described comprising a, body having a through flow passage, a pivotally mounted vane normally extending transversely 'of the line of ow through said passage, said vane being swingable under the force of iluidtraversingsad passage, there being an orice communicating with said passage, a movable valve element controlling said orice, cam means rocked as a result of swinging of said vane, and follower means engaging said cam means and connected to said valve element for controlling the latter in dependence upon the position of said vane, said vane having an operative effect in either direction of swing.

3. A device of the class described comprising ,a body having a through flow passage, a vane pivotally mounted in said body and normally extending directly across said passage, there being an orifice communicating with said passage substantially in the plane of said vane when the latter is in its normal position, a recprocable valve element controlling said orifice, and transmission means between said vane and said valve for controlling the latter in dependence upon the position of said Vane.

4. A device of the class described comprising a body having a through flow passage, a vane pivotally mounted in said body and normally extending directly across said passage, there being an orlce communicating with said passage substantially in the plane of said vane when the latter is in its normal position, a reciprocable valve element .controlling said orice'.' and transmission means between said vane and said valve for controlling the latter in dependence upon the position of said-vane, said vane having an operative.,

eiect in either direction .of swing.

5. A device of the class'described comprising I a body having a through flow passage, said body having an opening between the ends of said passage, said vane being swingable under the there being an escape orice in said cover, a movable valve element controlling said orice, a'

pivotally mounted vane normally extending transversely of the line of ow through said passage, said vane being swingable under the force of fluid'traversing said passage, and transmission means between said vane and said Vvalve element for controlling the latter in dependence upon the position of said vane.

6. Structure according to claim 5 wherein said cover carries bearing means for pivotally mount.- ing said vane.

7. Structure according to claim 5 wherein said cover has an outwardly extending boss through n which said orice extends, and wherein a flanged ring screw-threaded on the body is provided for holding said cover in place. Y

8. Structure according to claim 5 wherein said orice is formed in a plugl threaded in an opening.

in said cover.

9. Structure according to claim 5 wherein said orifice is formed in a plug threaded in an opening in said cover, and wherein a stem secured to said valve element extends through said orice and is engaged by a spring yieldingly holding the valve element seated.

10. Structure according to claim 1 wherein the cam means is fixed to the vane coaxially with the latter.

11. Structure according to claim 1 wherein the cam means is xed t0 the vane coaxially with the latter and has opposed rises so as to be operative in either direction of swing sof the vane to move the valve element.

12. Structure according to claim 1 wherein the cam means is xed to the vane coaxially with the latter, wherein the pivotal axis of the vane is at one end thereof and the orice is opposite the 'free end of the vane when the latter is in normal position, wherein the cam means is coaxial with the pivotalaxis of the vane, and wherein the follower means is in the form of a hook.

13. A device of the class described comprising a body having a through flow passage and an orice between the ends of said passage, a movable valve member controlling said orifice, movable means in said passage moved as a result of iiow through said passage in either direction, and

transmission means between said movable means v rying the control means for said orice.

16. Structure according to claim 3 wherein said transmission means comprises a stem in the normal plane of said vane and wherein said vane is provided with a slot to permit its swinging in -1 either direction without interference with said 20. Structure according to claim 1 wherein the' vane is pivoted on an axis adjacent the orifice and wherein the cam means is operative in either direction-o` swingof the vane.

WILLIAM B.v SIVIITH. 

